The Mastiff is good with children, and gets along well with other dogs and household pets if properly socialized. In the words of the 1800 Cynographia Britannica �What the lion is to the cat, the Mastiff is to the dog. The noblest of the family, he stands alone, all others sinking before him. I have seen him down with his paw the Terrier or cur that has bit him, without offering further injury. In a family he will permit the children to play with him and will suffer all their little pranks without offence.�